UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): ~~September 27~~ June 8, ~~2006~~2007

InfraSource Services, Inc.

(Exact name of registrant as specified in its charter)


Delaware	001-32164	03-0523754

(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)


100 West Sixth Street, Suite 300 Media, Pennsylvania		19063

(Address of principal executive offices)		(Zip Code)

(610) 480-8000

(Registrant’s telephone number, including area code)

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) oþ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 1 8.01. ~~Entry~~Other ~~Into a Material Definitive Agreement.~~ Events

On ~~September~~June 218, ~~2006~~2007, David Helwig, the Chief Executive Officer, President and Chairman of the Board of InfraSource Services, Inc. (the “Company”), entered into a ~~Amendment~~stock trading plan intended to acomply ~~Management~~with ~~Agreement~~Rule 10b5-1 (of the ~~“Amendment”)~~Securities ~~with~~Exchange ~~Walter~~Act G.of ~~MacFarland~~1934, inas ~~connection~~amended ~~with~~(the “Plan”). Under the ~~departure~~terms of the Plan, Mr. ~~MacFarland~~Helwig ~~from~~will ~~the~~sell ~~position~~up to 164,073 shares of ~~Executive~~Company ~~Vice~~Common ~~President~~Stock, ~~Electric~~which, upon completion of the proposed acquisition of the Company by Quanta Services, Inc. (“Quanta”), will ~~The~~convert ~~Amendment~~into ~~became~~approximately ~~effective~~200,661 byshares ~~its~~of ~~terms~~common onstock ~~September 27,~~of ~~2006~~Quanta. ~~Pursuant~~The toshares covered by the Plan ~~Amendment,~~include inshares held directly by Mr. Helwig and shares held ~~addition~~by toDRHCLH ~~the~~Partnership, ~~payment~~L.P., of ~~the~~which ~~severance~~Mr. Helwig inis the ~~amount~~sole general ofpartner. ~~his~~Shares ~~base~~will ~~salary~~be atsold under the Plan at or above specified market prices during specified time ofperiods. ~~the~~The Plan, ~~termination~~unless ~~for~~earlier ~~twenty-four~~terminated ~~months~~in asaccordance ~~contemplated~~with byits ~~the~~terms, ~~Management~~will ~~Agreement,~~generally ~~the~~remain ~~Company~~effective ~~agreed~~until the tofirst ~~extend~~anniversary of the ~~exercise~~first ~~period~~trade ~~for~~made ~~vested~~pursuant ~~stock~~to ~~options~~the toPlan. ~~150~~Mr. ~~days~~Helwig ~~following~~will ~~termination~~become a member of ~~employment,~~Quanta’s ~~and~~Board Mrof Directors following the completion of the acquisition. ~~MacFarland~~ ~~agreed~~Transactions tounder ~~extend~~the Plan ~~his~~will ~~non-compete~~be ~~covenant~~disclosed ~~for~~publicly anthough ~~additional~~appropriate 6filings with the Securities and Exchange ~~months~~Commission.

~~The~~Important ~~Amendment~~Information ~~to the Management Agreement with Mr. MacFarland will be attached as an exhibit to the Company’s upcoming Form 10-Q~~ for ~~the~~Investors ~~period~~and ~~ending September 30, 2006.~~Stockholders

In connection with the proposed acquisition of InfraSource by Quanta, Quanta filed a joint proxy statement/prospectus with the Securities and Exchange Commission (the “SEC”) on April 20, 2007. INVESTORS AND SECURITY HOLDERS ARE ADVISED TO READ THE PROXY STATEMENT BECAUSE IT CONTAINS IMPORTANT INFORMATION ABOUT THE MERGER AND THE PARTIES TO THE MERGER. Investors and security holders may obtain a free copy of the proxy statement and other documents filed by InfraSource at the SEC website, http://www.sec.gov.

InfraSource and certain executive officers and other members of its management may be deemed participants in the solicitation of proxies from its stockholders in connection with the proposed acquisition. Information concerning the interests of InfraSource’s participants in the solicitation, which may be different than those of InfraSource stockholders generally, is set forth in the proxy statement/prospectus relating to the acquisition.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	INFRASOURCE SERVICES, INC. (Registrant)
	By:	/s/ Deborah C. Lofton
Date: September 28, 2006		Name Deborah C. Lofton
Date: June 11, 2007		Name:	Deborah C. Lofton
		Title:	Senior Vice President, General Counsel and Secretary

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